143 Diego Rivera Dream of A Sunday Afternoon in the Alameda Park

Smarthistory essay by Doris Maria-Reina Bravo:
https://www.khanacademy.org/test-prep/ap-art-history/later-europe-and-americas/modernity-ap/a/rivera-dream-of-a-sunday-afternoon-in-alameda-central-park

"Revolutionary Art" PBS Video featuring Rivera's Dream of a Sunday Afternoon. Video, 5:31:

http://www.pbs.org/itvs/storm-that-swept-mexico/classroom/revolutionary-art/

short biography article and short videos:
http://www.biography.com/people/diego-rivera-9459446#famous-muralist

video with commentary in Spanish, and zoomable photographs:
www.museomuraldiegorivera.mx/ex